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US 12,481,184 B2Granted
Eyewear with non-polarizing ambient light dimming
AssigneeSnap Inc.
InventorsVaibhav Mathur, Miller Schuck, Mario Matranga
Life of this patent
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AssigneeSnap Inc.
InventorsVaibhav Mathur, Miller Schuck, Mario Matranga
Estimating the term…
An electronic eyewear device including a spatial dimming pixel panel within an optical assembly that delivers improved backlighting conditions for displayed images. The spatial dimming pixel panel is spatially dimmed where an image is positioned on a display, and the unoccupied area of the display is not dimmed (undimmed), thereby unaltering the real-world view through that portion of the display. The spatial dimming pixel panel is made of multiple liquid crystal cells arranged in a gridded orientation with a dye-doped or guest-host liquid crystal system having a phase change mode with homeotropic alignment. The spatial dimming pixel panel absorbs nonpolarized light when a voltage is applied across the cells and passes nonpolarized light in the absence of a voltage across the cells.
An electronic eyewear device, comprising:
A method of operating an eyewear device having a display configured to allow viewing of a background through the display, a processor configured to process a video including frames having an image and display the processed frames on the display, and a spatial dimming pixel panel coupled to the display, wherein the spatial dimming pixel panel is configured to be selectively controlled by the processor to produce a dimmed portion that is less than the entire spatial dimming pixel panel, wherein the spatial dimming pixel panel comprises multiple pixels, wherein the processor is configured to selectively control dimming of the individual pixels that correspond to an area of the display displaying the image, comprising the steps of:
A spatial dimming pixel panel configured for use with an electronic eyewear device having a display configured to allow viewing of a background through the display and a processor configured to process a video including frames having an image, wherein the spatial dimming pixel panel is configured to couple to the display, the spatial dimming pixel panel including pixels and circuitry configured to be selectively controlled by the processor to produce a dimmed portion of the pixels that is less than the entire spatial dimming pixel panel, wherein the dimmed portion of pixels has reduced transparency, wherein the spatial dimming pixel panel comprises multiple pixels, wherein the processor is configured to selectively control dimming of the individual pixels that correspond to an area of the display displaying the image, wherein the multiple pixels are activated and deactivated while the video is displayed on the display, wherein the pixels corresponding to the image are dimmed while the pixels corresponding to the background are not dimmed.
Dependencies are inferred from the claim text.